Form to update data

[Riparatissimo]

Hello,
after so many years using PrestaShop, I would like to approach development
of some modules that I still can not find in the add-ons.

To make things easier, I used the module generator offered by PrestaShop,
but even if they work after installing them, they do not have any functionality

Despite having opened the code and understanding the system of installation and creation
of variables in the configuration table, I can not figure out how to do it
the update of these variables.

I give an example:
I created a form with 5 different tabs.
In a TAB I would like to display a form for saving four parameters:

username, password, email, reference

The four variables are present in the configuration table

Can you help me to be able to do this form with insert / update data?

Thanks in advance

[Rolige]

Hello:

In Prestashop 1.6 look for class AdminPattern that contains detailed examples of all form options. Should be the same form structure even if you are using PS 1.7.

Regards

[Riparatissimo]

I looked for where you told me
a lot of code but still unclear to me.
Would not you be able to post a little example?

Thanks in advance for the help